I don't have a general side to whether or not Big Hero 6 was a good movie. But since I have to choose, I would have to lean more to the negative side.
I don't nessecerally hate this movie, but I think it could have been better. I know that when Tadashi died, it was supposed to be a sad part or what not, but for me, I couldn't get my mind off of how he (to me) committed suicide by running into the fire. Of course he didn't really commit suicide, but to me it looked that way. I also wasn't to invested with the movie, I definitely think the characters could have been written better, as well as the story.
Honestly though there was its good parts, but then there were its bad parts.
But overall I'd give this movie like a 6.1/10